[Embtk] Give ability to specify default -mcpu

Signed-off-by: Abdoulaye Walsimou Gaye <awg@embtoolkit.org>

1 files changed, 20 insertions, 1 deletions

diff --git a/configure b/configure
index 4fa0705491..6ae92aa528 100755
--- a/configure
+++ b/configure
@@ -1440,6 +1440,8 @@ Optional Features:
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-default-cpu      Add by default -mcpu=cpu to all compiler
+                          invocations.
   --with-optimize-option  Select the compiler options to use for optimized
                           builds
   --with-extra-options    Specify additional options to compile LLVM with
@@ -3955,6 +3957,23 @@ HOST_ARCH=$host_arch
 
 
 
+# Check whether --with-default-cpu was given.
+if test "${with_default_cpu+set}" = set; then
+  withval=$with_default_cpu;
+else
+  withval="Unknown"
+fi
+
+
+if test "$withval" != "Unknown" ; then
+
+cat >>confdefs.h <<_ACEOF
+#define DEFAULT_TARGET_MCPU "$withval"
+_ACEOF
+
+fi
+
+
 
 { echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
 echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; }
@@ -10316,7 +10335,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10317 "configure"
+#line 10338 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H